This research provides a critical review of recent research on service quality, customer satisfaction, customer loyalty, and loyalty program, the key themes especially in Korea, considering that service research has been making a tremendous progress in terms of publications as well as coverage. An integrative review of recent research is conducted in the following ways, focusing on service quality and customer satisfaction. First, this study examines recent developments in the conceptualization and measurement of service quality and customer satisfaction and probes the theoretical frameworks. Although SERVQUAL and SERVPERF are two representative models for measuring service quality, KS-SQI (Korean-standard Service Quality Model) has been developed and reliably used as a unique and representative model in Korea. On the other hand, KSCI and NCSI are popular models for measuring customer satisfaction in Korea. Second, the study investigates the effects of service quality and customer satisfaction on firm performance and discusses their effectiveness. Many studies have shown that customer satisfaction has significant effects on the profitability and value of firms. Empirical results also reveal that customer satisfaction has a dynamic effect on firm performance in terms of carryover effects over time. Third, after scrutinizing the definitions and types of customer loyalty as well as the determinants of customer-oriented loyalty programs, this study suggests practical implications for managers. Specifically, researchers have made a conceptual distinction between true loyalty and spurious loyalty, and studies show that two types of loyalty yield different consequences. Several studies have also investigated how to design loyalty programs in order to attain customer loyalty. Finally, future research directions are discussed by integrating theoretical developments and emerging research trends. It is suggested that more attention should be paid to customer dysfunctional behavior, side effects of reward programs, transformative service, technological advances, and customer affect.